Marking machine



F. A. PUTNAM Nov'. 30,1926. 1,608,861

MARKING MACHINE Original Filed y 5, 1924 2 Sheets-Sheet 1 Fig. 1.

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Fred A. FuTnom by AITYS.

Nov. 30 1926. 1,608,861

F. A. PUTNAM MARKING MACHINE Original Filed July 1924 2 Sheets-Sheet 2Fig.2.

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Fred A.PuTnum -'b /zmdwkw Anya.

Patented Nov. 3t), 1926 FRED A. PUTNAM, O3? KEE'NE, NEW IGNGE TO MARKEMIYEACHINE COMPANY, OF Bosron, MASSACHUSETTS, A

MART ENG MAUI? This invention relates to marking machines of the typewhich comprise a wor St aport and a printing head carrying type c irewere and movable toward and from the work support to make the printedimpresslon on the work.

The object of the invention is to provide a novel means for supportingand movement to the printing head and the novel features thereof will bemore fully herein after set forth and then pointed out in the appendedclaims.

lnthe. drawings, Fig. 1 is a side view of a marking machine embodyingthe invention and showing the type in inking position;

Fig. 2 is a similar view showing the print ing head in position to makea printed impression.

1 indicates the frame of a marking machine embodying my invention, and 2indicates the work support on which the work or sheet 3 to be printedisplaced. The print ing is done by type members 4 that are carried by aprinting head 5, the latter being movable toward and from the work support 2. The present invention relates to novel means for giving theprinting head 5 its movement.

This printing head is shown as carried by the lower end of an arm 6, theupper endoit which is pivotally connected at 7 to one end of a lever 8.the latter being pivoted at 9 to the frame 1. The lever 8 extends beyondthe pivot point 9 and the extended end has a pulling spring 10 connectedthereto which tends to raise the front end of the lever to which theprinting head is secured.

The movement of the printing head toward and from the work support iscontrolled by a toggle lever device comprising the two toggle elements11 and 12 which are pivoted together at 13. he toggle element 11 ispivoted 14 to the frame 1 and. the toggle element 12 is pivoted at 15 tothe arm 6.

16 indicates a pulling spring which is connected at one end to thepivotal connection 13 of the toggle lever device and at theother end isconnected to the frame preferably to the pivotal connection 9. Thespring 16 thus has a normal tendency to break the toggle 11, 12 and toswing it into the; position shown in Fig. 1. VVhe-n the toggle Dividedand this application filed February to,

Serial No. 89,2412.

head will be brought back into printing on, as shown in Fi 9 Thestraight 0 .u-l-I airing of the toggle is acc'dmplished manually bymeans of a treadle not shown, which is connected to the toggle element11 by means of a link or connection 17.

The temple device is provided with a stop constructed so that it cannotbe bent or broken below its straightened position. This stop is in theterm of an abutment 18 car *ied by the toggle member 12 and anadjustable screw 19 screw-threaded in a boss 20 carried by the togglemember 11. The screw 19 will be adjusted so that i will enthe abutmentwhen the toggle elements have been swung into their straightenedposition.

In the operation of the device and assuming that the printing head is inits retracted position shown in Fig. 1 a downward pull on the connection17 will first straighten the toggle thereby swinging the lower end ofthe arm 6 forwardly and carrying the printing head 5 forwardly into aposition over the work support. Continued downward pull on theconnection 17 will then swing the straightened toggle and the lever 8down-- wardly thus bringing the type characters the work as shown in Fig2.

lVhen-the toggle lever straightened the distance between the pivots 14:and 15 is the same as the distance between the pivots 9 and? and,therefore, after the toggle lever has been straightened saidstraightehed toe" gle and lever 8 operate with a parallel ruler motion.The pivot 9 is vertically over the pivot 1-11 and when the straightenedtoggle land the lever 8 are swung downwardly the printing head will.therefore. be etiven a vertical movement whi h is at ri 1111 entries tothe surface of the work support and the type, theretcre will be brouslisquarely 'n'st the work. During this downward. 131161 ruler motion thespring 10 is extendllli port is first in a forward direction to bringthe printing head directly over the work support and then in a downwarddirection to bring the type squarely against the work. Similarly, duringthe retracting movement the printing head will first be moved directlyaway from the work in a vertical direc tion and will then be swungbackwardly.

An advantage resulting from this construction is that the final movementof the printing head which brings the type against thework and also theinitial withdrawing movement is in a direction at rightangles to thework support, which is essential in making a clear printed impression.

21 is an adjustable stop against which the toggle member 11 rests whenthe parts are in their normal raised position.

The type are inked by an inking pad 22 which is constructed to bebrought against the type when the printing head is in its normal raisedposition. This inking pad is secured to a swinging arm 23 which ispivoted at 2% to an arm 25 extending from the frame. The swinging member23 is connected to the printing head 5 by means of a link 26, the latterbeing pivoted to the arm at 2? and to the printing head at 28.

The construction and proportion of the parts 23, 26 is such that whenthe printing head is swung from its operative position shown in Fig. 2to its raised position shown in' Fig. 1 the member 23 carrying the inking pad will be raised thus bringing the inking pad against the type asshown in Fig. 1. When the printing head is moved into its operativeposition, as shown in Fig. 2, the member 23 is swung downwardly thusseparating the pad from the type and this separating movement occurs asthe printing head begins to move forwardly so that the type will nothave a dragging movement across the face of the inking pad. Similarly,when the printing head returns to the position shown in Fig. 1 theinking pad will be given an upward movement during the last part of themovement of the printing head thus bringing the inking pad squarelyagainst the type.

It will be seen from the above that I have provided a simple mechanismfor operating the printing head by which said head is not only broughtagainst the work support and raised therefrom in a direction at rightangles to the work support, but is also given a backward movement so asto carry it back of the work support. The advantage of this is that whenthe printing head is raised it is back of the work support and so thatthe operator may freely remove the printing sheet from the work supportand place a new sheet thereon.

The mechanism has the further advantage that it is extremely simple inconstruction.

This application is a division of application Serial No. 723,97 filedJuly 3rd, 192% I claim:

1. In a marking machine, the combination with a frame, of a printinghead having an arm rigid therewith and rising therefrom, a lever pivotedto the upper end of the arm and to the frame, a toggle member pivoted atone end to the frame and at the other end to the arm, and means tostraighten the toggle thereby to swing the printing head forwardly andthen to move the toggle downwardly thereby to bring the printing headinto printing position.

2. In a marking machine, the combination with a frame, of a printinghead having an arm rigid therewith and rising therefrom, a lever pivotedto the upper end of the arm and to the frame, a toggle member pivoted atone end to the frame and at the other end to the arm, said toggle memberbeing constructed to break in one direction only, means to straightenthe toggle lever thereby to swing the printing head forwardly and thento swing said lever downwardly thereby to bring the printing head intoprinting position.

3. In a marking machine, the combination with a frame, of a printin headhaving an arm rigid therewith and rising therefrom, two parallel rulermembers by which the arm is supported, means for actuating said membersto give the printing head a vertical movement, one of said members beinga toggle device capable of breaking in one direction only.

l. In a marking machine, the combination with a frame, of a printinghead having an arm rigid therewith and rising therefrom, two parallelruler members by which the arm is supported, means for actuating saidmembers to give the printing head a vertical movement, one of saidmembers being a toggle device capable of breaking in one direction only,a pivoted ink-pad-carrying member, an inking pad carried thereby, andmeans connecting said member to said printing head whereby the inkingpad is brought against the type when theprinting head is raised.

5. In a marking machine, the combination with a frame, of a worksupport, a printing head having an arm rigid therewith and risingtherefrom, a lever pivoted to the upper end of the arm and to the frame,a spring acting on said lever tending to raise the printing head, atoggle member pivoted at one end to the frame and at the other end tothe arm, said toggle being arranged to break in one direction only, aspring acting on said toggle and tending to break the same, andmanually-operated means for first straightening the toggle therebyswinging the printing head forwardly and then to swing the toggledownwardly to move the printing head against the work support.

6. In a marking machine, the combina tion with a frame, of a worksupport, a printing head having an arm rigid therewith and risingtherefrom, a lever pivoted to the upper end of the arm and to the frame,a spring acting on said lever and tending to raise the printing head, atoggle member pivoted at one end to the frame and at the other end tothe arm, said toggle being arranged to break in one direction only, aspring acting on said toggle and tending to break the same, and manuallyoperated means for first straightening the toggle thereby swinging theprinting head forwardly and then to swing the toggle downwardly to movethe printing head against the work support, said toggle whenstraightened forming with said lever a parallel ruler device whereby thefinal movement of the printing head is in a direction at right angles tothe work support.

In testimony whereof, I have signed my name to this specification.

FRED A. PUTNAM.

